Extension roller screen



Feb. 2l, 1950 J. B. PLAUM 2,498,094

EXTENSION ROLLER 'SCREEN Filed April 1o, 1946 2 sheets-sheet 1 ffm,

Fell 21, 1950 J. B. PLAUM EXTENSON ROLLER SCREEN Filed April lO, 1946 2 Sheets-Sheet 2 Afm,

Patented Feb. 21," 1950 UNITED STATES PAT-'EN T oFFllcjE `vApplicationApril1'0, 1946,'\Seria1No.-"6'60,975 In Canada April 1, 1946 y-2 iClaimS. (01.160429) :My invention relates itc improvements 'in roller screens for windows in .whichthe screening Amaterial is unwound ffromiai'tensionedfroller asthe sash :is vbeing raised, andiconversely, iis'wound lon the roller iin the '-lowering: of "thef sash. S'Mo're v-pa'rticularly the invention `concerns *a roller :screen ofthe adjustabletypef'for diiferent sized windows.

An fobject Vof fthe 'invention is to provide ran improved rollerfscreen which can VL'be yreadily adjusted to suit windows of different sizes, vand which -can be easily installed iby a fhouseholder without the use of lsp'ecialitools.

A further Vobject is vto provide a roller Ascreen which will completely-'enclose the opening supplied lbya raised sash, -and-which'will assure that no crevices exist *by which `linsects =may gain entrance.

These and other objects are 'fattainedby the novel construction yand arrangement of the appliance described in the.ensuingspeciiication and shown in the drawing whichforms'a part thereof. vThe drawing :is illustrative sof the selected fembodiment of the invention, and ,it will .be understood thatsuch changes and departures as to details of the s'tructuremayibe resorted to as come withinthe invention denediinthe claims.

in .the drawing,

Fig. 1 is farperspective view'partly in section of theximproved roller screen.

Fig..2 is a verticalsection vonline 2-2fof Fig. :3.

',Fig. -3 .is va fragmentary ,elevational viewof the roller -screenishowing the left endyportionithereof, the case beingdenotedinsection.

Fig. A is an Yend .view of the roller screen with the screening material partly .withdrawn .from the casing in the raised position of the windowsash.

Fig. 5 is a front elevational View of Fig. 4.

Fig. 6 is a vertical section through the casing showing one of the rollers partly in section.

Referring to the drawing by reference characters, it will be seen that the roller screen comprises a casing, generally denoted by the numeral 1, applied to the lower portion of a sliding sash 3 of an ordinary window. The casing is of the telescopic type by which it is adapted for elongation and contraction in order that it may be adjusted to windows of different sizes. It is composed of the intertting members 9 and l0, which are preferably fashioned of metal.

The member 9 slides within the member l0, and each independently of the other supports a roller having a length of screening material applied to it for winding and unwinding operations thereon. Highly flexible reticulate plastic is desirably .2 used fas vthe .screening material, :but comparable screening of .a conventional character .may be employedzaccording -to the dictates .I of thermanufacture.

The frollers, .indicatedfby H and 2, `extend substantially the :full lengthof the respective. mem- :bersS and 10, and are arranged `one'above .the other :so that there is an overlapping of the screening 4material :at the innernendsof the rollers. .iymtilizing screening m-aterialin twofsec- -tions,one=on each roller, the telescopic action of the .casing .-is not .interfered lwith in making the adjustment of the screen-to-a window. The overlap of saidsecticn-s varies 'according to thead- .-justment made. .The .complementary sections .of `the -screening materialare indicated at -|3 and .I4 for-theLrollersJl and-l2, respectively. Both Asec- .tions of :the kscreening material gare .downwardly `directedthrough.aslot sl5 in .the bottom portion Aoffthe casing, .whichslot.iscommon-to the members vEl .and-.HL v,The slotis discernible yinFig. 2.

The lower ends of the sectionsare .each anchored to an-rupturnedfangegI-Gofan attachment Iplate bymeansof ya :binding Astrip fl 1 and. fastening-.elements I8. flheseplatesy numbered |.9.and `2lJ,.inter1it and vhave telescopic parts V.made Aup ofthe tubular elements 2l. The plates thereforecan .berelativelyadjusted in conformity with any-elongation land contraction of the casing as may -be required to .t a window. .The-,platesare detachably secured to 'the stool Vof Athe window by fastening elements 2.2, shown as thumb screws.

AThe yrollers .are each .supplied 'with springs, as at `23, vhaving the usual key `pieces /2'4 `bywhich they are tensionedfin lthe unwinding operation. The key pieces are' mounted inthe outer end walls 25 of the members 9 and l0. The inner end of upper roller l I is journalled on an ear 26 integral with or secured to the back wall, of the member 9. The inner end of the lower roller I2 is journalled on an ear 21 upstanding from the bottom portion of the member l0 and freely projecting through a slot 28 in the bottom portion of the member 9. This slot accommodates telescopic action of the members 9 and ID.

From the preceding description it will be understood that the overlapping arrangements of the rollers and the sections of the screening material constitutes an important feature of the invention. Another feature of importance iS that means are provided to close off any opening that may exist at the sides of the screening material in the raised position of the lower sash. Although the casing will be mounted on the lower sash with its ends in close proximity to the enclosing frame or jamb 29 of the window, the adjacent side edges of the screening material cannot extend to the adjoining faces 30 of the enclosing frame or jamb, and consequent-,lT there must be a space that should be closed off. The means for closing this space at each end of the casing comprises a tape or ribbon 3| of inelastic or elastic material wound upon a roller 32 with an end secured to the respect attachment plate by the elements i6 and I1 in a similar manner to that in which the screening material is anchored. Each roller is located in juxtaposition to the adjacent face 30 of the window frame 29 so that the tape thereon is in contact with the face 30 and in overlapping relation with the side edge portion of the screening material, as will best be seen from an inspection of Fig. 5.

Each roller is rotatably mounted on a pin 33 carried by an arm 34 pivoted to the casing by an element 35 at the underside thereof. Said arm is urged by a spring 36 to press the roller inwardly so that the tape or ribbon will be held in contact with the screening material. A tongue 3l rigidly depends from the casing to the rear of the screening material to support the same against the pressure of the roller.

The casing is preferably detachably applied to the window sash by means of devices located near the ends thereof. These attachment devices each comprise an ear 38 rigid with the back wall of the casing and projecting upwardly therefrom. The ear is inserted in a substantially U- shaped strap 39 horizontally arranged and secured by fastening elements. such as Wood screws, to the respective vertical rail of the sash 8. The ear is of a length to project from the upper side of the strap and its top end is fitted with a spring-pressed pin 40 which in its projected posi- Ation is engaged with the top edge of the strap to secure the ear with a latching action. To release the ear it is only necessary to depress the pin. The ear can then be withdrawn to effect removal of the casing from the sash.

Means are desirably supplied on the casing to secure the sash 8 in raised position. Such means are comprised of a catch device at each end of the casing in the form of a bar 4l slidabiy tted in a bracket 42 secured to the bottom portion of the respective telescopic element of the casing. The bar is horizontally arranged and provided With a head 43 of rubber at its outer end for frictionally engaging the adjacent face 30 of the enclosing frame 29. A spring 44 operates to normally retain the bar in retracted position, and a lever cam 45 is pivotally supported at 46 with 4 its eccentric or cam face engaged with the inner end of the bar. By swinging the cam lever downwardly about its fulcrum the bar is outwardly urged to lock the sash against movement.

The invention provides a highly efiicient and serviceable roller screen which can be manufactured at low cost.

What I claim is:

1. In a roller screen mounted Ain a Window frame and having a casing extending horizontally between opposite side faces of a Window sash in said frame and housing a spring roller from which is stretched screening material,

said material having its free end attached to a horizontal element of said window frame; means for closing off the space between a side edge of the stretch of screening material and the adjacent side face of said window frame, said means comprising an arm pivoted at an end thereof on said casing and swingable to and away from said screening material, a roller mounted on the swinging end of said arm, a ribbon of pliant material wound on said roller and extended therefrom to overlap said side edge of the screening material, a free end of said ribbon being attached to said horizontal element, and a spring urging said arm and pressing said roller inwardly toward said screening material and holding the ribbon material on the roller in contact with the screening material to effect a friction drive for unwinding and winding of the ribbon according to the movement of the casing attendant upon the opening and closing of the Window.

2. A roller screen as set forth in claim 1 in which a tongue rigidly depends from the casing to support the screening material against the thrust of the roller on which the ribbon of pliant material is wound.

JOSEPH B. PLAUM.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date '745,201 Kreh Nov. 24, 1903 998,102 LadWig July 18, 1911 1,042,491 Smith Oct. 29, 1912 1,164,385 Neupauer Dec. 14, 1915 1,268,228 Fox June 4, 1918 1,536,005 Housteau Apr. 28, 1925 1,660,225 Haftel Feb. 2l, 1928 2,012,124 Feige Aug. 20, 1935 2,314,784 Helgoth Mar. 23, 1943 

